
.ad{
    border: gray 1px solid;
    height:53px;
    width:1530px;
    background-color: darkgrey;
    font-size: 12px;
    
}
.advertisement{
    float:right;
    

}
.ad::after{
    content:"";
    display:block;
    clear:both;
}
li .logo {
   background-image: url("https://www.apple.com/ac/globalnav/4/zh_CN/images/globalnav/apple/image_large.svg");
   background-position-x: center ;
   background-position-y: 0;
   width:16px;
   height:44px;
  
}
li .search{
    background-image: url("https://www.apple.com/ac/globalnav/4/zh_CN/images/globalnav/search/image_large.svg");
  width:16px;
   height:44px;
}
nav li{
    position: relative;
    list-style:none;
    float:left;
    font-size:14px;
    padding-left:120px;

}

nav::after{
    content:"";
    display:block;
    clear:both;
}

nav {
    border:1px #292e33 solid;
    height:53px;
    width:1530px;
    background-color:#292e33  ;
   
  
}
image{
     
   background-size: 800px;
   height:700px;
    width:600px;
   
    background-image: url(https://www.apple.com/v/home/eo/images/iphone-avail-heroes/iphone-11-pro-hero/iphone_11pro_hero__detmnn2ne1si_medium.jpg);
    float:right;
}
 
.Pro{
    padding-left:240px;
    background-color: black;
     color:white;
     border:1px solid #18191a;
    height:700px;
    width:1530px;
} 





.ipho{
    font-size:40px;
    

}
